This unusual necklace combines black onyx, a gem prized since early antiquity, with chalcedony of a rich and vibrant green. The result is at once dramatic and sophisticated, a jewel suitable for both day and evening wear. Shiny onyx has been popular in both the old and new worlds for centuries. In exodus, the gem is mentioned as fitting prominently into the breastplate of the high priest. Its lustrous polished surface makes it especially sought after for modern jewelry. As an amulet, the chief virtue of onyx is that it attracts and absorbs negative humors from the body of the wearer, causing relief from both physical pain and mental anxiety. Black onyx serves as a buffer from pain and a defensive wall against evil and illness. Chalcedony was used as jewelry by the Egyptians, the Romans, and by the people of the holy land. Usually pale in color, it takes on richer shades when treated chemically. Chalcedony is said to drive away fevers, to prevent diseases of the eye, and to relieve gallstones. The ancients used it to banish bad dreams. Whoever wears this gorgeous necklace is certain to be blessed both with good fortune and good taste.